Answer with Explanation:
We are given that
Mass,m=11.5 kg

1 m=100 cm


According to law of conservation momentum along east west direction




According to law of conservation of momentum along north south direction






Direction,


Answer:
The answer is Friction.
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It's include in the topic of digestive system when when food is travel's from mouth to small intestine there's S intestine get nutrition from the food and sent it to bllod from small vessel's present in it.
The answer to the question is A